Pable flue or chimney damper



June 14, 1949. y

ADJUSTABLE FLJE Filed oct. e, 1944 E A. STRETZ OR CHIMNEY DAMPER :FORFIREPLACES, FURNACES, AND THE LIKE 2 Sheets-Sheet l WWW June 14, 1949. vE. A. sTRETz 2,473,182

ADJUSTABLE FLUE OR CHIMNEY DAMPER FOR FIREPLACES, FURNACES, AND THE LIKEl Filed Oct. 6, 19 `2 Sheets-Sheet? o g5' /4 i v /a j .37 Z A J5 53 J0JZ '25 27 /3 /5 I r11/enter Patented June 14, 1949 ADJ US TABLE FLUE FORFIREPLACES,

LIKE

R CHIMNEY DAMPER FURNACES, AND THE Ernest A. Stretz, Compton, Calif.Application October 6, 1944, Serial No. 557,536

1 Claim.

l This invention relates to a damper, and more particularly to such adamper adapted to be utilized in flues or chimneys, or the like.

A primary object of this invention is the provision of an improveddamper adapted to be positioned in the flue or chimney of a replace,furnace, or the like, characterized by means whereby the same may beadjusted to t any desired size of flue or chimney.

An additional important object of this invention is the provision ofsuch a damper which may be readily applied to existing chimneys or ues.

Still another object is the provision of such a damper having improvedcontrol means thereon adapted to extend exteriorly of the ue or chimney,whereby the position of the damper may be readily controlled.

Additional objects reside in the combinations of elements, arrangementsof parts, and features of construction, all as will be more fullypointed out hereinafter, and disclosed in the accompanying drawings,wherein there is shown a preferred embodiment Iof this inventiveconcept.

In the drawings:

Figure 1 is a top plan view of one form of damper embodying features ofthis invention.

Figure 2 is a bottom plan view of the device shown in Figure 1.

Figure 3 is an end elevation view of the device shown in Figures 1 and2.

Figure 4 is a side elevational view of the device.

Figure 5 is an enlarged fragmentary view of `a constructional detail,and

Figure 6 is an enlarged fragmentary perspective view of an additionalconstructional detail.

Like reference numerals refer to like parts throughout the several viewsof the drawings.

Having reference now to the drawings, the damper is comprised of twomembers, one generally indicated at IIJ comprising a fixed portion, andthe other generally indicated at `II comprising a movable portion.Referring, first, to portion I0, it will be seen that the same iscomprised of two plates I2 and I3, the edges of each being rolled, as atI4 and I5, the rolled edge I4 being adapted to t slidably within theroll I5. The plates I2 and I3 are bent at right angles, as at I5 andI'I, respectively, to form a right angled flange, extending upwardlywith respect to the plate portions. Adjacent the extremities of theportion III, lugs I8 and I 9 are struck from the material of the platesI2 and I3, respectively, and provided with apertures therein (see Fig.5) adapted to engage the extremities 20 and 2|,

respectively, of roll portions 22 and 23, similar to roll portions I4and I5, formed on one edge of damper member II, which, it is noted, iscomprised of two plate-like members 24 and 25. Similar rolls 26 and 2'Iedges of the plate-like members 24 and 25, the rolls 23 and 21 adaptedto be slidably positioned within rolls 22 and 26, whereby the plates maybe slidably moved with respect to each other.

Spaced lugs 30 are adapted to be struck from an intermediate portion ofplate I2 and depend downwardly therefrom, and additional spaced lugs 3|are adapted to be struck from an intermediate portion of the plate 24,and similarly depend therefrom. A lever 32 is adapted to extend betweenlugs 30, being pivotally secured thereto, as by a bolt 33 and nut 34,and is secured at one extremity to a link 35, as by a nut 36 and bolt31. The opposite end of link 35 is secured, as by a nut 38 and bolt 39,between lugs 3| of plate 24.

From the foregoing the method of use and operation of the device shouldbe readily understandable. The damper is first adjusted to the size ofthe ue in which it is desired to be utilized, by moving the plates 25and I3 inwardly or outwardly with respect to their associated plates I2and 24, respectively, the roll members I5, 23 and 2'! being respectivelyslidable within the correspending members I4, 22 and 26, and the deviceis then positioned within the chimney, plate member I Il being xedlysecured in any desired position in any desired manner therein. Theextremity of the lever 32 extends outwardly from the ue or downwardlywith respect thereto, in order to be readily accessible, and, it will beseen that movement of the lever 32 varies the position of plate member II, which serves as a damper member within the flue.

From the foregoing it will be seen that there is herein provided adevice accomplishing al1 the objects of this invention and others,including many advantages of great practical utility and commercialimportance.

As many embodiments may be made of this inventive concept, and as manymodications may be made in the embodiment hereinbefore shown anddescribed, it is to be understood that all matter herein is to beinterpreted merely as illustrative and not in a limiting sense.

I claim:

In a damper assembly, the combination of two elongated base members ofL-shape in cross section longitudinally and slidably secured in nestedcontact with each other with the outer surfaces are formed on theopposite of the legs of one member in face to face contact with theinner surfaces of the corresponding legs of the other member, wherebythe two members are capable of longitudinal sliding movement relative toeach other for fitting the damper in a ue, a pair of fiat membersextending longitudinally of said base members, the lsame being in faceto face vcontact and movable with respcii to each other longitudinallyof the base members, such movement corresponding to the relativemovement of the base members with respect to each other, one edge ofsaid members bei-ng disposed adjacent the outer ilat kside of Vone ofthe legs of said L-shaped base members and pivotally mounted upon saidflat side .of said base members on an axis extending longitudinallythereof, a pair of lugs struek'f-rom one lof said base members and acorresponding pair `of lugs struck from one of saidjlat members, thelugs of each pair beine in alignment with-each .other with those of theother Pair, a damper op @rating lever pvotally .Connected intermediateits ends betweenthe lugs op `said'ilone of said base members, and aconnecting 1.11115 .pivotally conpsted at .one end between the lugsonsaid one of said flat members and pivot-,ally connected at itsopposite end to the adjacent end of said damper operating lever.

ERNEST A. STRETZ.

REFERENCES CITED The following references :are o record in the iiie ofthis patent:

UNITED STATES PATENTS Number Name Date 706,182 Johnson Aug. 5, 1902728,447 Doll May 19, 1903 1,197,120 Heath Sept. 5, 1916 1,308,822Urstrom July 8, 1919 1,349,186 Chapman Aug. 10, 1920 1,657,369 ChapmanJan. 24, 1928 1,700,304 Beaubien Jan. 29, 1929 1,946,008 White Feb. 6,1934 FOREIGN PATENTS Number Country Date .2,416 Great Britain Feb. 189.5

